CN216478665U - Shock attenuation connection structure and unmanned car - Google Patents

Abstract

The application relates to unmanned car technical field, concretely relates to shock attenuation connection structure and unmanned car has solved the vibration of unmanned car and has caused the problem of influence to modules such as control module, operation module, power module installed on unmanned car. This shock attenuation connection structure is including linking up frame and support frame to and connect the damper who links up frame and support frame. The shock-absorbing assembly includes an elastic unit and a rigid unit. The rigid unit is positioned in the first shaft hole of the connecting frame and the second shaft hole of the support frame, so that the connecting frame and the support frame can rotate relatively, rigid connection of the connecting frame and the support frame is realized, and the rigidity of the damping connection structure is ensured. The elastic unit is connected with the connecting frame and the supporting frame, so that elastic connection is formed between the connecting frame and the supporting frame, and the influence of vibration of the unmanned vehicle on modules such as a control module, an operation module and a power module which are arranged on the unmanned vehicle is reduced.

Description

Shock attenuation connection structure and unmanned car

Technical Field

The application relates to the technical field of unmanned vehicles, in particular to a damping connection structure and an unmanned vehicle.

Background

With the development of unmanned vehicle technologies such as artificial intelligence, visual computation, global positioning system, etc., unmanned vehicles are more and more widely applied. The unmanned vehicle can be applied to the scenes of agriculture, industry and the like. For example, in the field of plant protection, unmanned vehicles can be loaded with various operation modules to spray medicines, seeds, powders and the like. Compared with the traditional manual operation, the labor intensity can be greatly reduced, and the operation efficiency is improved. However, the unmanned vehicle vibrates due to the operation of the engine of the unmanned vehicle and the bumping of the unmanned vehicle, and the vibration affects modules such as a control module, an operation module and a power module which are installed on the unmanned vehicle.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the application provides a shock attenuation connection structure and unmanned vehicle, has solved the problem that the vibration of unmanned vehicle causes the influence to modules such as control module, operation module, power module installed on unmanned vehicle.

In a first aspect, an embodiment of the present application provides a shock-absorbing connecting structure, including: the connecting frame is connected with the carrying unit and comprises a first shaft hole; the supporting frame is connected with the supporting unit and comprises a second shaft hole; the shock absorption assembly is connected with the connecting frame and the supporting frame; wherein, damper includes: the elastic unit is used for connecting the connecting frame and the supporting frame to form elastic connection between the connecting frame and the supporting frame; and the rigid unit is positioned in the first shaft hole and the second shaft hole and is rotationally connected with the connecting frame and/or the supporting frame, so that the connecting frame and the supporting frame can rotate relatively.

With reference to the first aspect, in certain implementations of the first aspect, the rigid unit includes a central shaft, the engagement frame includes a bearing, an inner ring of the bearing forms a first shaft hole, and the first shaft hole is in transition fit with the central shaft to enable the central shaft and the engagement frame to rotate relatively.

With reference to the first aspect, in certain implementations of the first aspect, the rigid unit further includes a nut, an end of the central shaft remote from the bearing includes a threaded shaft section, and the nut is in threaded connection with the threaded shaft section of the central shaft.

With reference to the first aspect, in certain implementations of the first aspect, the second shaft bore includes spline grooves axially disposed along the second shaft bore, and the central shaft includes a spline shaft portion axially disposed along the central shaft; wherein, spline axial region and spline groove are pegged graft to cooperate.

With reference to the first aspect, in certain implementations of the first aspect, the engaging frame includes a pivoting portion and a first lug and a second lug symmetrically disposed about the pivoting portion, the supporting frame includes a bearing portion and a third lug and a fourth lug symmetrically disposed about the bearing portion, and the elastic unit includes a first elastic unit and a second elastic unit; the first elastic unit is connected with the first lug and the third lug, and the second elastic unit is connected with the second lug and the fourth lug.

With reference to the first aspect, in certain implementations of the first aspect, one end of the pivot portion includes a pivot surface, and one end of the receiving portion includes a receiving surface, and the pivot surface is attached to the receiving surface.

With reference to the first aspect, in certain implementations of the first aspect, the other end of the pivot portion includes two engaging beams, the engaging beams are connected to the carrying unit, and the other end of the receiving portion includes two supporting arms, and the supporting arms are connected to the supporting unit.

With reference to the first aspect, in certain implementations of the first aspect, the engagement beam includes an engagement hole, and the carrier unit includes an engagement rod, and the engagement rod is in insertion fit with the engagement hole; the supporting arm comprises a supporting hole, the supporting unit comprises a supporting rod, and the supporting rod is matched with the supporting hole in an inserting mode.

With reference to the first aspect, in certain implementations of the first aspect, the elastic unit includes a rubber body or a spring.

In a second aspect, an embodiment of the present application provides an unmanned vehicle, including: the shock-absorbing connecting structure mentioned in the first aspect; the control module is connected with the shock absorption connecting structure; and the wheel type supporting module is connected with the shock absorption connecting structure.

The shock attenuation connection structure that this application embodiment provided is including linking up frame and support frame to and connect the damper of linking up frame and support frame. The shock absorbing assembly includes an elastic unit and a rigid unit. The rigid unit is positioned in the first shaft hole of the connecting frame and the second shaft hole of the support frame, so that the connecting frame and the support frame can rotate relatively, rigid connection of the connecting frame and the support frame is realized, and the rigidity of the damping connection structure is ensured. The elastic unit is connected with the connecting frame and the supporting frame, so that elastic connection is formed between the connecting frame and the supporting frame, and the influence of vibration of the unmanned vehicle on modules such as a control module, an operation module and a power module which are arranged on the unmanned vehicle is reduced. The utility model provides a shock attenuation connection structure can enough guarantee shock attenuation connection structure's rigidity promptly, can reduce the influence of the vibration of unmanned car to installing various modules on unmanned car again.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent the same structure or step.

Fig. 1 is a schematic structural diagram of a shock-absorbing connection structure according to an embodiment of the present application.

Fig. 2 is a sectional view illustrating the shock-absorbing coupling structure shown in fig. 1.

Fig. 3 is a schematic structural view of a connection frame according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a support frame according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an unmanned vehicle according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a shock-absorbing connection structure according to an embodiment of the present application. Fig. 2 is a sectional view illustrating the shock-absorbing coupling structure shown in fig. 1. Fig. 3 is a schematic structural view of a connection frame according to an embodiment of the present application. Fig. 4 is a schematic structural view of a support frame according to an embodiment of the present application. As shown in fig. 1 to 4, the shock-absorbing connecting structure 10 includes an engagement frame 100, a support frame 200 and a shock-absorbing member.

Specifically, the engagement frame 100 is connected to the carrier unit. The connection manner of the connection frame 100 and the carrying unit may be welding, screwing, clamping, inserting, etc., and the application is not limited specifically. The carrying unit is used for carrying modules such as a control module and an operation module, and the application is not limited specifically. The supporting frame 200 is connected with the supporting unit. The connection mode of the supporting frame 200 and the supporting unit may be welding, screw connection, clamping, inserting, etc., and the present application is not limited specifically. The support unit may be a wheel-type support unit, a crawler-type support unit, etc., and the present application is not particularly limited. The support bracket 200 includes a second shaft hole 210. The engagement frame 100 includes a first shaft hole 110. The shock absorbing assembly connects the engaging frame 100 and the supporting frame 200.

Illustratively, the shock absorbing assembly includes an elastic unit 310 and a rigid unit 320.

Specifically, the elastic unit 310 connects the engaging frame 100 and the supporting frame 200, so that an elastic connection is formed between the engaging frame 100 and the supporting frame 200. The connection manner of the elastic unit 310 with the engagement frame 100 and the support frame 200 may be bonding, screwing, etc., and the application is not particularly limited. In an embodiment of the present application, the elastic unit 310 may be a rubber body or a spring, and a designer may select the elastic unit according to actual requirements, and the structure of the elastic unit 310 is not specifically limited in the present application.

In an embodiment of the present application, the elastic unit 310 may be a cylinder made of rubber, and the cylinder may have a first through hole along an axial direction. The engaging frame 100 may include a protrusion having a second through hole, and the supporting frame 200 may also include a protrusion having a third through hole. The shock-absorbing coupling structure 10 may further include a coupling bolt passing through the second through hole, the first through hole and the third through hole in sequence, thereby coupling the engagement frame 100, the elastic unit 310 and the support frame 200 together, and the elastic unit 310 is located between the engagement frame 100 and the support frame 200, so that the engagement frame 100 and the support frame 200 form an elastic coupling.

Specifically, the rigid unit 320 is located within the first shaft hole 110 and the second shaft hole 210. The rigid unit 320 may be a rotating shaft rotatably connected to the first shaft hole 110 and the second shaft hole 210, so as to be rotatably connected to the engagement frame 100 or the support frame 200, or rotatably connected to both the engagement frame 100 and the support frame 200, so as to realize relative rotation between the engagement frame 100 and the support frame 200, thereby ensuring rigid connection between the engagement frame and the support frame, and improving rigidity of the shock-absorbing connection structure.

The shock-absorbing connecting structure 10 provided by the embodiment of the present application includes an engagement frame 100 and a support frame 200, and a shock-absorbing assembly connecting the engagement frame 100 and the support frame 200. The shock absorbing assembly includes an elastic unit 310 and a rigid unit 320. The rigid unit 320 is located in the first shaft hole 110 of the engaging frame 100 and the second shaft hole 210 of the supporting frame 200, so that the engaging frame 100 and the supporting frame 200 can rotate relatively, rigid connection between the engaging frame 100 and the supporting frame 200 is realized, and rigidity of the shock-absorbing connecting structure 10 is ensured. The elastic unit 310 connects the engaging frame 100 and the supporting frame 200 to form an elastic connection between the engaging frame 100 and the supporting frame 200, thereby reducing the influence of the vibration of the unmanned vehicle on modules such as a control module, an operation module, and a power module mounted on the unmanned vehicle. That is, the shock-absorbing connection structure 10 of the present application can not only ensure the rigidity of the shock-absorbing connection structure 10, but also reduce the influence of the vibration of the unmanned vehicle on various modules mounted on the unmanned vehicle.

In an embodiment of the present application, the rigid unit 320 includes a central shaft 321, the engagement frame 100 includes a bearing 120, an inner ring of the bearing 120 forms a first shaft hole 110, and the first shaft hole 110 is in transition fit with the central shaft 321, so that the central shaft 321 and the engagement frame 100 rotate relatively. The transition fit means that when the hole and the shaft are assembled, a clearance fit or an interference fit is possible, and a tolerance band of the hole and a tolerance band of the shaft are overlapped. The nature of the transition fit is that it may have clearance or interference, but with less clearance and interference, primarily for relatively stationary connections that are precisely located and require disassembly, such as the connection of the bearing inner race to the shaft.

Specifically, the bearing 120 may be a deep groove ball bearing, a self-aligning ball bearing, a thrust roller bearing, a needle bearing, or the like, and the application does not specifically limit the kind of the bearing 120.

The inner ring of the bearing 120 forms the first shaft hole 110, and is in transition fit with the central shaft 321, so that the central shaft 321 and the engaging frame 100 rotate relatively, friction between the first shaft hole 110 and the central shaft 321 is reduced, and rotation between the central shaft 321 and the engaging frame 100 is more stable.

In an embodiment of the present application, the bearing 120 may be a single row tapered roller bearing. The inner ring and the outer ring of the tapered roller bearing are both provided with tapered roller paths, and tapered rollers are arranged in the tapered roller paths. The tapered roller bearing can bear radial load and unidirectional axial load. Therefore, the single-row tapered roller bearing can bear the axial force generated by vibration, and the anti-vibration effect is further improved.

In an embodiment of the present application, the rigid unit 320 further includes a nut 322, an end of the central shaft 321 away from the bearing 120 includes a threaded shaft section, and the nut 322 is screwed with the threaded shaft section of the central shaft 321. Specifically, the central shaft 321 is threaded with the nut 322 after passing through the second shaft hole 210, so that the axial movement of the central shaft 321 along the central shaft 321 is restricted, and the central shaft 321 is prevented from falling off from the second shaft hole 210.

In one embodiment of the present application, the second shaft hole 210 includes a splined groove disposed axially along the second shaft hole 210, and the central shaft 321 includes a splined shaft portion disposed axially along the central shaft. The spline shaft part is in plug-in fit with the spline groove.

Through making spline groove and spline axial region plug-in fit, prevent that center pin 321 and support frame 200 relative rotation. That is, only the relative rotation between the adapter frame 100 and the rigid unit 320 is maintained, and the rigid unit 320 and the support frame 200 form a fixed connection through the spline shaft part and the spline groove, so that the rigidity between the adapter frame 100 and the support frame 200 is improved.

In an embodiment of the present invention, the engaging frame 100 includes a pivoting portion 130, and a first lug 140 and a second lug 150 symmetrically disposed with respect to the pivoting portion 130. The supporting bracket 200 includes a receiving portion 220, and a third lug 230 and a fourth lug 240 symmetrically disposed with the receiving portion 220 as a center. The elastic unit 310 includes a first elastic unit 311 and a second elastic unit 312.

Specifically, the first lug 140 and the second lug 150 may be integrally formed with the pivot portion 130. The first lug 140 and the second lug 150 may be fixed to the pivot 130 by welding, bonding, or the like. The first lug 140 and the second lug 150 can be detachably connected to the pivot portion 130 by screwing, plugging, and the like. The connection manner of the first lug 140 and the second lug 150 with the pivot portion 130 is not particularly limited in the present application. Third lug 230 and fourth lug 240 may be integrally formed with bolster 220. The third lug 230 and the fourth lug 240 may be fixed to the socket 220 by welding, bonding, or the like. The third lug 230 and the fourth lug 240 may also be detachably connected to the socket 220 by screwing, plugging, etc. The connection manner of the third lug 230 and the fourth lug 240 with the bearing part 220 is not particularly limited in the present application.

Specifically, the first elastic unit 311 connects the first lug 140 and the third lug 230, and the second elastic unit 312 connects the second lug 150 and the fourth lug 240. The first elastic unit 311 may be connected with the first lug 140 and the third lug 230 by bonding, screwing, clipping, etc. The second elastic unit 312 may be connected with the second lug 150 and the fourth lug 240 by means of bonding, screwing, clipping, etc. The connection manner of the first elastic unit 311 with the first lug 140 and the third lug 230, and the connection manner of the second elastic unit 312 with the second lug 150 and the fourth lug 240 are not particularly limited in the present application.

In an embodiment of the present application, the first lug 140 may include a fourth through hole 141. The second lug 150 may include a fifth through hole 151. The third lug 230 may include a sixth through hole 231. The fourth lug 240 may include a seventh through hole 241. The first elastic unit 311 may include an eighth through hole (not shown in the drawings). The second elastic unit 312 may include a ninth through hole (not shown in the drawings). The shock-absorbing coupling structure 10 may further include a first lug coupling bolt 101 and a second lug coupling bolt 102. The first lug connecting bolt 101 sequentially passes through the fourth through hole 141, the eighth through hole and the sixth through hole 231, thereby connecting the engagement frame 100, the first elastic unit 310 and the support frame 200 together, and the first elastic unit 311 is located between the engagement frame 100 and the support frame 200, so that the engagement frame 100 and the support frame 200 form an elastic connection. The second lug connecting bolt 102 passes through the fifth through hole 151, the ninth through hole and the seventh through hole 241 in sequence, thereby connecting the engagement frame 100, the second elastic unit 312 and the support frame 200 together, and the second elastic unit 312 is located between the engagement frame 100 and the support frame 200, so that the engagement frame 100 and the support frame 200 form an elastic connection.

By arranging the first lug 140 and the second lug 150 symmetrically arranged with the pivot part 130 as the center and the third lug 230 and the fourth lug 240 symmetrically arranged with the carrying part 220 as the center, the first elastic unit 311 is connected with the first lug 140 and the third lug 230, and the second elastic unit 312 is connected with the second lug 150 and the fourth lug 240, so that the relative rotation angle between the engagement frame 100 and the support frame 200 can be limited. As shown in fig. 1, if the supporting frame 200 is rotated clockwise (in the direction of arrow a in fig. 1) relative to the engaging frame 100, the first elastic unit 311 is stretched and the second elastic unit 312 is compressed. Since the first elastic unit 311 and the second elastic unit 312 have a predetermined extension and compression range, the relative rotation angle between the supporting frame 200 and the engaging frame 100 can be limited. By setting the preset extension and compression ranges of the first elastic unit 311 and the second elastic unit 312, the relative rotation angle between the supporting stand 200 and the engaging stand 100 can be set. By limiting the relative rotation angle between the engagement frame 100 and the support frame 200, it is possible to prevent the stability of the shock-absorbing coupling structure 10 from being lowered due to an excessively large rotation angle between the engagement frame 100 and the support frame 200. That is, by limiting the relative rotation angle between the engaging frame 100 and the supporting frame 200, the shock-absorbing effect can be achieved, and the stability of the shock-absorbing connecting structure 10 can be ensured.

In an embodiment of the present application, one end of the pivot portion 130 includes a pivot surface 131, one end of the receiving portion 220 includes a receiving surface 221, and the pivot surface 131 is attached to the receiving surface 221. Specifically, the pivot 130 may be a cylinder with an axial through hole, and the pivot surface 131 is formed by changing the radius of a part of the cylinder. As shown in fig. 3, the pivot surface 131 is located at a smaller radius than other positions of the pivot portion 130. The socket 220 may also be a cylinder with an axial through hole. As shown in fig. 3, the receiving surface 221 may be a semicircular curved surface located at one end of the receiving portion 220. The radius of the curved surface of the receiving surface 221 may be equal to the radius of the pivot surface 131, so that the receiving surface 221 and the pivot surface 131 form a surface contact. The pivot portion 130 and the receiving portion 220 may also be other shapes, and the designer may select them according to the actual requirement, which is not specifically limited in this application.

By arranging the pivot surface 131 and the bearing surface 221 and attaching the pivot surface 131 and the bearing surface 221, surface contact can be formed between the connecting frame 100 and the support frame 200, the contact area between the connecting frame 100 and the support frame 200 is increased, and the connection rigidity between the connecting frame 100 and the support frame 200 is improved. In addition, by arranging the pivot joint surface 131 and the bearing surface 221, only the pivot joint surface 131 and the bearing surface 221 can be subjected to finish machining, so that the roundness and the coaxiality of the pivot joint surface 131 and the bearing surface 221 are ensured, and the machining cost is reduced.

In an embodiment of the present invention, one end of the pivot portion 130 includes a first lug 140 and a second lug 150 symmetrically disposed around the pivot portion 130. The other end of the pivot 130 includes two engagement beams, a first engagement beam 160 and a second engagement beam 170. The number of the connecting beams can be selected according to actual requirements, and the method is not particularly limited in the application. The first and second coupling beams 160 and 170 may be symmetrically disposed centering on the pivot 130. The first and second engagement beams 160, 170 are connected to the carrier unit to provide two support points for the carrier unit, which improves the stability of the carrier unit.

The first and second coupling beams 160 and 170 may be integrally formed with the pivot portion 130. The first and second coupling beams 160 and 170 may be fixed to the pivot portion 130 by welding, bonding, or the like. The first and second coupling beams 160 and 170 may be detachably connected to the pivot portion 130 by means of screw connection, insertion connection, or the like. The connection manner of the first and second link beams 160 and 170 to the pivot 130 is not particularly limited in this application.

The socket 220 includes a third lug 230 and a fourth lug 240 symmetrically disposed about the socket 220 at one end thereof, and two support arms, a first support arm 250 and a second support arm 260, at the other end thereof. The number of the supporting arms can be selected according to actual requirements, and the application is not particularly limited. The first and second support arms 250 and 260 may be symmetrically disposed about the socket 220. The first and second support arms 250 and 260 are coupled to the support unit to provide two support points for the support unit, thereby improving the stability of the support unit.

The first and second support arms 250, 260 may be integrally formed with the socket 220. The first and second support arms 250 and 260 may be fixed to the socket 220 by welding, bonding, or the like. The first support arm 250 and the second support arm 260 can be detachably connected with the supporting portion 220 by screwing, plugging and the like. The connection manner of the first and second support arms 250 and 260 and the socket 220 is not particularly limited in the present application.

In an embodiment of the present application, the engagement beam includes an engagement hole, and the carrier unit includes an engagement rod, and the engagement rod is engaged with the engagement hole. The supporting arm comprises a supporting hole, the supporting unit comprises a supporting rod, and the supporting rod is matched with the supporting hole in an inserting mode. Realize linking up the frame 100 and carrying being connected of thing unit through the cooperation of pegging graft, be convenient for link up frame 100 and carry the installation and the dismantlement of thing unit, improved user's use and experienced. The support frame 200 is connected with the supporting unit through the insertion matching, so that the support frame 200 and the supporting unit can be conveniently mounted and dismounted, and the use experience of a user is improved.

Fig. 5 is a schematic structural diagram of an unmanned vehicle according to an embodiment of the present application. As shown in fig. 5, the unmanned vehicle includes a shock-absorbing connecting structure 20, a control module 30, and a wheel support module 40 according to any of the above embodiments.

Specifically, shock absorbing connection structure 20 connects control module 30 and wheel support module 40. Shock absorbing attachment structure 20 may be directly connected to control module 30 or may be connected to control module 30 via cargo unit 50. For example, the shock absorbing attachment structure 20 may be welded directly to the control module 30. For another example, the shock-absorbing connecting structure 20 may be connected to the object carrying unit 50 by welding, screwing, clipping, inserting, etc., and then the control module 30 is fixed on the object carrying unit 50, so as to facilitate the installation and detachment of the control module 30.

In one embodiment of the subject application, the unmanned vehicle includes two shock absorbing attachment structures 20. Two shock attenuation connection structure 20 use year thing unit 50 to be central symmetry setting, improve the stability of carrying thing unit 50 to improve the stability of fixing control module 30 on carrying thing unit 50, further reduce the influence of vibration to control module 30.

In one embodiment of the subject application, the drone vehicle includes four wheeled support modules 40. The four wheel-type support modules 40 are arranged in a matrix with the carrying unit 50 as the center, so that the stability of the carrying unit 50 is improved, the stability of the control module 30 fixed on the carrying unit 50 is improved, and the influence of vibration on the control module 30 is further reduced.

In an embodiment of the present application, the unmanned vehicle may further include a power module 41. The power module 41 may be a motor for driving the wheels 42 in the wheeled support module 40. The drone vehicle may also include a task module (not shown in the figures). The operation module may be a module for spraying a medicament, seeds, powder, etc. The application does not specifically limit the type of the operation module.

By making the unmanned vehicle include the shock-absorbing connection structure 20, the shock-absorbing effect of the unmanned vehicle is improved, and the influence of the vibration of the unmanned vehicle on modules such as the control module 30, the power module 41, and the operation module mounted on the unmanned vehicle is reduced.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims (10)

1. A shock-absorbing connecting structure characterized by comprising:

the connecting frame is connected with the carrying unit and comprises a first shaft hole;

the supporting frame is connected with the supporting unit and comprises a second shaft hole;

the shock absorption assembly is connected with the connecting frame and the supporting frame;

wherein, the shock attenuation subassembly includes:

the elastic unit is used for connecting the connecting frame and the supporting frame to enable the connecting frame and the supporting frame to form elastic connection;

and the rigid unit is positioned in the first shaft hole and the second shaft hole and is rotationally connected with the connecting frame and/or the supporting frame, so that the connecting frame and the supporting frame can rotate relatively.

2. The shock absorbing attachment structure according to claim 1, wherein said rigid unit includes a central shaft, said engagement frame includes a bearing, an inner race of said bearing forms said first shaft hole, said first shaft hole transitionally engaged with said central shaft to allow said central shaft and said engagement frame to rotate relatively.

3. The shock absorbing attachment structure according to claim 2 wherein said rigid unit further comprises a nut, an end of said central shaft remote from said bearing comprising a threaded shaft segment, said nut being in threaded engagement with said threaded shaft segment of said central shaft.

4. The shock absorbing connection according to claim 2, wherein said second shaft bore includes a splined groove disposed axially along said second shaft bore, and said central shaft includes a splined shaft portion disposed axially along said central shaft;

and the spline shaft part is in plug-in fit with the spline groove.

5. The shock-absorbing connecting structure according to claim 1, wherein the engaging frame includes a pivot portion and first and second lugs symmetrically disposed about the pivot portion, the supporting frame includes a receiving portion and third and fourth lugs symmetrically disposed about the receiving portion, and the elastic unit includes first and second elastic units;

wherein the first resilient unit connects the first lug and the third lug, and the second resilient unit connects the second lug and the fourth lug.

6. The shock-absorbing connecting structure according to claim 5, wherein one end of the pivot portion includes a pivot surface, and one end of the receiving portion includes a receiving surface, and the pivot surface is engaged with the receiving surface.

7. The shock-absorbing connecting structure according to claim 6, wherein the other end of said pivot portion includes two engaging beams connected to said carrier unit, and the other end of said receiving portion includes two supporting arms connected to said supporting unit.

8. The shock absorbing attachment structure according to claim 7, wherein the engagement beam includes an engagement hole, and the carrier unit includes an engagement bar which is fitted in the engagement hole; the supporting arm comprises a supporting hole, the supporting unit comprises a supporting rod, and the supporting rod is matched with the supporting hole in an inserted mode.

9. The shock-absorbing connecting structure according to any one of claims 1 to 8, wherein the elastic unit includes a rubber body or a spring.

10. An unmanned vehicle, comprising:

the shock-absorbing connecting structure according to any one of claims 1 to 9;

the control module is connected with the shock absorption connecting structure; and

and the wheel type support module is connected with the shock absorption connecting structure.

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